Description

4-Hydroxy-7-[[3-[[4-[(2,4-Dihydroxyphenyl)Azo]Benzoyl]Amino]Benzoyl]Amino]-3-[(2-Methoxyphenyl)Azo]Naphthalene-2-Sulfonic Acid Sodium Salt is a high-purity, synthetic azo dye intermediate of significant industrial importance. Its complex molecular structure, featuring multiple azo and amide linkages, provides the chromophoric properties essential for producing vivid and stable colorants. This compound is primarily sought by manufacturers in the textile, ink, and specialty coatings industries for the synthesis of high-performance dyes and pigments.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of complex, high-value azo dyes for textiles and fabrics.
• Pigment Manufacturing: Used in the production of organic pigments for industrial paints, inks, and plastics, offering good lightfastness and color strength.
• Specialty Colorants: Applicable in the formulation of specialized colorants for non-textile uses, such as paper coloring or leather dyeing.
• Research & Development: Employed in chemical R&D laboratories for developing novel chromophores and studying structure-color relationships.
• Functional Dyes: Potential use in the synthesis of dyes for advanced applications, including sensitizers in dye-sensitized solar cells (DSSCs) or as pH indicators.

Basic Information

Item	Detail
Product Name	4-Hydroxy-7-[[3-[[4-[(2,4-Dihydroxyphenyl)Azo]Benzoyl]Amino]Benzoyl]Amino]-3-[(2-Methoxyphenyl)Azo]Naphthalene-2-Sulfonic Acid Sodium Salt
CAS No.	6470-57-1
Molecular Formula	C37H26N6O8S • Na
Molecular Weight	737.70 g/mol
Synonyms	Acid Red 414; C.I. 18015; Sodium 4-hydroxy-7-({3-[(4-{(E)-[2,4-dihydroxyphenyl)diazenyl]benzoyl}amino)benzoyl]amino)-3-[(2-methoxyphenyl)diazenyl]naphthalene-2-sulfonate; 2-Naphthalenesulfonic acid, 4-hydroxy-7-[[3-[[4-[(2,4-dihydroxyphenyl)azo]benzoyl]amino]benzoyl]amino]-3-[(2-methoxyphenyl)azo]-, sodium salt (1:1); Azo dye intermediate 6470-57-1; Direct Red 414; 7-Amino-4-hydroxy-3-((2-methoxyphenyl)azo)-N-(3-((4-((2,4-dihydroxyphenyl)azo)benzamido)benzoyl)naphthalene-2-sulfonamide sodium salt
EINECS	Contact for details

Quality Control

Our production of 4-Hydroxy-7-[[3-[[4-[(2,4-Dihydroxyphenyl)Azo]Benzoyl]Amino]Benzoyl]Amino]-3-[(2-Methoxyphenyl)Azo]Naphthalene-2-Sulfonic Acid Sodium Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and batch-to-batch reliability. Certificates of Analysis (COA) detailing purity, impurity profile, and physical specifications are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water, alkaline solutions

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.